-#if HAVE_STRING_H
-# include <string.h>
-#endif
-#if HAVE_WCHAR_H
-# include <wchar.h>
-#endif
-], [
-#ifndef wcwidth
- char *p = (char *) wcwidth;
-#endif
-])], [ac_cv_have_decl_wcwidth=yes], [ac_cv_have_decl_wcwidth=no])])
- if test $ac_cv_have_decl_wcwidth = yes; then
- ac_val=1
- else
- ac_val=0
- fi
- AC_DEFINE_UNQUOTED([HAVE_DECL_WCWIDTH], [$ac_val],
- [Define to 1 if you have the declaration of wcwidth(), and to 0
- otherwise.])
-])
+#include <string.h>
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
+ before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
+#include <wchar.h>
+])])